Commit Message

Check for a kernel IPL entry and load kernel image if one was specified.
If no kernel image was supplied and no boot device was specified or the boot device
is not of type virtio-blk-ccw, print an error message and exit.
Signed-off-by: Christian Paro <cparo@us.ibm.com>Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>